package top.fzqblog.utils;

 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.security.KeyManagementException;
 import java.security.NoSuchAlgorithmException;
 import java.security.cert.X509Certificate;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;

 import javax.net.ssl.SSLContext;
 import javax.net.ssl.TrustManager;
 import javax.net.ssl.X509TrustManager;

 import org.apache.commons.lang.StringUtils;
 import org.apache.http.HttpResponse;
 import org.apache.http.NameValuePair;
 import org.apache.http.client.HttpClient;
 import org.apache.http.client.entity.UrlEncodedFormEntity;
 import org.apache.http.client.methods.HttpDelete;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.client.methods.HttpPost;
 import org.apache.http.client.methods.HttpPut;
 import org.apache.http.conn.ClientConnectionManager;
 import org.apache.http.conn.scheme.Scheme;
 import org.apache.http.conn.scheme.SchemeRegistry;
 import org.apache.http.conn.ssl.SSLSocketFactory;
 import org.apache.http.entity.ByteArrayEntity;
 import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.DefaultHttpClient;
 import org.apache.http.message.BasicNameValuePair;

 public class HttpUtils {

 /**
 * get
 *
 * @param host
 * @param path
 * @param method
 * @param headers
 * @param querys
 * @return
 * @throws Exception
 */
public static HttpResponse doGet(String host, String path, String method,
        Map<String, String> headers,
        Map<String, String> querys)
        throws Exception {
        HttpClient httpClient = wrapClient(host);

        HttpGet request = new HttpGet(buildUrl(host, path, querys));
        for (Map.Entry<String, String> e : headers.entrySet()) {
        request.addHeader(e.getKey(), e.getValue());
        }

        return httpClient.execute(request);
        }

/**
 * post form
 *
 * @param host
 * @param path
 * @param method
 * @param headers
 * @param querys
 * @param bodys
 * @return
 * @throws Exception
 */
public static HttpResponse doPost(String host, String path, String method,
        Map<String, String> headers,
        Map<String, String> querys,
        Map<String, String> bodys)
        throws Exception {
        HttpClient httpClient = wrapClient(host);

        HttpPost request = new HttpPost(buildUrl(host, path, querys));
        for (Map.Entry<String, String> e : headers.entrySet()) {
        request.addHeader(e.getKey(), e.getValue());
        }

        if (bodys != null) {
        List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>();

        for (String key : bodys.keySet()) {
        nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key)));
        }
        UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");
        formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
        request.setEntity(formEntity);
        }

        return httpClient.execute(request);
        }

/**
 * Post String
 *
 * @param host
 * @param path
 * @param method
 * @param headers
 * @param querys
 * @param body
 * @return
 * @throws Exception
 */
public static HttpResponse doPost(String host, String path, String method,
        Map<String, String> headers,
        Map<String, String> querys,
        String body)
        throws Exception {
        HttpClient httpClient = wrapClient(host);

        HttpPost request = new HttpPost(buildUrl(host, path, querys));
        for (Map.Entry<String, String> e : headers.entrySet()) {
        request.addHeader(e.getKey(), e.getValue());
        }

        if (StringUtils.isNotBlank(body)) {
        request.setEntity(new StringEntity(body, "utf-8"));
        }

        return httpClient.execute(request);
        }

/**
 * Post stream
 *
 * @param host
 * @param path
 * @param method
 * @param headers
 * @param querys
 * @param body
 * @return
 * @throws Exception
 */
public static HttpResponse doPost(String host, String path, String method,
        Map<String, String> headers,
        Map<String, String> querys,
        byte[] body)
        throws Exception {
        HttpClient httpClient = wrapClient(host);

        HttpPost request = new HttpPost(buildUrl(host, path, querys));
        for (Map.Entry<String, String> e : headers.entrySet()) {
        request.addHeader(e.getKey(), e.getValue());
        }

        if (body != null) {
        request.setEntity(new ByteArrayEntity(body));
        }

        return httpClient.execute(request);
        }

/**
 * Put String
 * @param host
 * @param path
 * @param method
 * @param headers
 * @param querys
 * @param body
 * @return
 * @throws Exception
 */
public static HttpResponse doPut(String host, String path, String method,
        Map<String, String> headers,
        Map<String, String> querys,
        String body)
        throws Exception {
        HttpClient httpClient = wrapClient(host);

        HttpPut request = new HttpPut(buildUrl(host, path, querys));
        for (Map.Entry<String, String> e : headers.entrySet()) {
        request.addHeader(e.getKey(), e.getValue());
        }

        if (StringUtils.isNotBlank(body)) {
        request.setEntity(new StringEntity(body, "utf-8"));
        }

        return httpClient.execute(request);
        }

/**
 * Put stream
 * @param host
 * @param path
 * @param method
 * @param headers
 * @param querys
 * @param body
 * @return
 * @throws Exception
 */
public static HttpResponse doPut(String host, String path, String method,
        Map<String, String> headers,
        Map<String, String> querys,
        byte[] body)
        throws Exception {
        HttpClient httpClient = wrapClient(host);

        HttpPut request = new HttpPut(buildUrl(host, path, querys));
        for (Map.Entry<String, String> e : headers.entrySet()) {
        request.addHeader(e.getKey(), e.getValue());
        }

        if (body != null) {
        request.setEntity(new ByteArrayEntity(body));
        }

        return httpClient.execute(request);
        }

/**
 * Delete
 *
 * @param host
 * @param path
 * @param method
 * @param headers
 * @param querys
 * @return
 * @throws Exception
 */
public static HttpResponse doDelete(String host, String path, String method,
        Map<String, String> headers,
        Map<String, String> querys)
        throws Exception {
        HttpClient httpClient = wrapClient(host);

        HttpDelete request = new HttpDelete(buildUrl(host, path, querys));
        for (Map.Entry<String, String> e : headers.entrySet()) {
        request.addHeader(e.getKey(), e.getValue());
        }

        return httpClient.execute(request);
        }

private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException {
        StringBuilder sbUrl = new StringBuilder();
        sbUrl.append(host);
        if (!StringUtils.isBlank(path)) {
        sbUrl.append(path);
        }
        if (null != querys) {
        StringBuilder sbQuery = new StringBuilder();
        for (Map.Entry<String, String> query : querys.entrySet()) {
        if (0 < sbQuery.length()) {
        sbQuery.append("&");
        }
        if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {
        sbQuery.append(query.getValue());
        }
        if (!StringUtils.isBlank(query.getKey())) {
        sbQuery.append(query.getKey());
        if (!StringUtils.isBlank(query.getValue())) {
        sbQuery.append("=");
        sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));
        }
        }
        }
        if (0 < sbQuery.length()) {
        sbUrl.append("?").append(sbQuery);
        }
        }

        return sbUrl.toString();
        }

private static HttpClient wrapClient(String host) {
        HttpClient httpClient = new DefaultHttpClient();
        if (host.startsWith("https://")) {
        sslClient(httpClient);
        }

        return httpClient;
        }

private static void sslClient(HttpClient httpClient) {
        try {
        SSLContext ctx = SSLContext.getInstance("TLS");
        X509TrustManager tm = new X509TrustManager() {
public X509Certificate[] getAcceptedIssuers() {
        return null;
        }
public void checkClientTrusted(X509Certificate[] xcs, String str) {

        }
public void checkServerTrusted(X509Certificate[] xcs, String str) {

        }
        };
        ctx.init(null, new TrustManager[] { tm }, null);
        SSLSocketFactory ssf = new SSLSocketFactory(ctx);
        ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
        ClientConnectionManager ccm = httpClient.getConnectionManager();
        SchemeRegistry registry = ccm.getSchemeRegistry();
        registry.register(new Scheme("https", 443, ssf));
        } catch (KeyManagementException ex) {
        throw new RuntimeException(ex);
        } catch (NoSuchAlgorithmException ex) {
        throw new RuntimeException(ex);
        }
        }
        }